NIBCO Technical Services • Phone: 1.888.446.4226 • Fax: 1.888.336.4226
3
metallic, the PTFE disc is always white in color and the Buna-N disc is black and
softer than the other two.
When more detailed information is required, the NIBCO Bronze & Iron Valve
catalog should be referred to using the valve figure number as the guide.
NIBCO
®
Lead-Free* HydraPure
®
valves can be identified by the double oval
symbol and “Si” – indicative of silicon Performance Bronze
®
– cast in the body of
the valve.
When more detailed information is required, the NIBCO Lead-Free Valve catalog
should be referred to using the valve figure number as the guide.
D. SERVICE
When installing valves for service in corrosive media, the NIBCO Chem-Guide may
be consulted for specific data or contact can be made with NIBCO Technical
Services. It is, however, the obligation of the user to make the ultimate decision of
fitness for use.
E. PRESSURE-TEMPERATURE RATINGS
Pressure and temperature ratings may be found in the Engineering section of the
latest printing of NIBCO catalog. This information is taken from applicable ASME
Standards.
NIBCO Lead-Free* Performance Bronze
®
maximum pressure-temperature
recommendation is 100psi at 300°F and are suitable for low pressure (15psi)
steam working pressure service.
F. CODES & REGULATIONS
A valve used under the jurisdiction of the ASME boiler and pressure vessel code,
the ANSI code for pressure piping, government or other regulations, is subject to
any limitation of that code or regulation and to the applicable ASME Standard.
Lead-Free* Performance Bronze
®
swing check valves conform to MSS SP-139, NSF/ANSI-61-8
Commercial Hot 180°F (includes Annex F and G), and NSF/ANSI-372. See NIBCO Technical
Bulletin
NTB-1216 Low Pressure/Low Temperature Valves Lead-Free* Standard Compliance –
MSS SP-139 & 145 for further clarification of lead-free standards.
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